CN103714728A - Simulation pressure gauge - Google Patents
Simulation pressure gauge Download PDFInfo
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- CN103714728A CN103714728A CN201310696301.8A CN201310696301A CN103714728A CN 103714728 A CN103714728 A CN 103714728A CN 201310696301 A CN201310696301 A CN 201310696301A CN 103714728 A CN103714728 A CN 103714728A
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- tensimeter
- emulation
- pressure gauge
- magneto
- coil
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Abstract
The invention discloses a simulation pressure gauge. According to the simulation pressure gauge, a mode of combination of a pressure gauge shell and a magneto-electric type pointer gauge-head is adopted, change of size of a 0-5VDC standard industrial DC voltage signal is received, and a corresponding deflection angle of a pointer is changed via the magneto-electric type pointer gauge-head so that size of a voltage value is displayed. An appearance structure, an installation form, a display mode and a numerical reading mode of the simulation pressure gauge are consistent to those of a real pressure gauge. In application of production of training devices, size of the measured voltage value can be displayed in a simulation way only by inputting the 0-5VDC voltage signal without piping the practical measured medium fluid (gas or liquid), a phenomenon of leakage is not generated and a requirement for installation is not high so that safety hidden troubles are eliminated, and thus the simulation pressure gauge has characteristics of being flexible and convenient in detection, high in reliability, great in stability and long in the service life. The simulation pressure gauge is applied in production of the training devices so that production cost can be reduced and use and maintenance cost can be reduced, and thus the simulation pressure gauge has wide market prospect and application value.
Description
Technical field
The present invention relates to educate demonstration equipment technical field, particularly a kind of emulation tensimeter of the use of imparting knowledge to students.
Background technology
Tensimeter is to take flexible member as sensitive element, measures and indicate the instrument higher or lower than environmental pressure.Tensimeter passes through the elastic deformation of the sensitive element (Bourdon tube, bellows, corrugated tube) in table, then by the throw-over gear of movement in table, pressure deformation is conducted to pointer, causes that pointer rotates to show pressure.Industrial process control with commercial measurement process in, because the elastic sensing element of mechanical compression table has very high physical strength and the characteristic such as convenient for production, the application of mechanical compression table almost spreads all over all industrial flows and scientific research field.
Yet, in the process of production practice, such as the cognitive ability that batch production process level petrochemical complex production practice device is the flow process manufacturing enterprises such as petrochemical complex is used for improving student or employee, the large-scale production practice device of functipnal capability.Because large-scale production practice device is actually without truly material or just substitute materials, e-quipment and pipe in device is without pressure or micro-low pressure, because ordinarily manometer is by the sensitive element in tensimeter (Bourdon tube, bellows, corrugated tube) pressurized generation elastic deformation, by the throw-over gear of movement in table, this elastic deformation amplified again and conduct to pointer, driving pointer to rotate to show the size of pressure.When if the sensitive element in tensimeter is not experienced the pressure of measured medium (gas or liquid medium), just can there is not elastic deformation in sensitive element, thereby, just cannot pressure be changed and conduct to pointer by the throw-over gear of movement in tensimeter, therefore, just can not show in real time according to operation steps the size of equipment in production practice device or manifold pressure.
If adopt real gauge measurement to show pressure, so just must in production practice device, pass into fluid (gas or liquid), to form the real pressure corresponding with measured demonstration pressure size, this just causes the manufacturing cost of production practice device high, investment is large; Installation requirement is high, maintaining difficulty; Operation requirements is high, complexity, and training cost of use is high, easily leaks, and potential safety hazard is many, greatly affects real training learning aid etc.
Summary of the invention
The present invention is directed to prior art above shortcomings, a kind of emulation tensimeter is provided.The present invention is achieved through the following technical solutions:
An emulation tensimeter, in order to analogue measurement internal pipe pressure, comprising:
Tensimeter index dial, the center of tensimeter index dial has a hole;
Magneto-electric pointer gauge outfit, a part for magneto-electric pointer gauge outfit, through hole, is exposed at outside tensimeter index dial;
Wherein, magneto-electric pointer gauge outfit receives d. c. voltage signal, and according to d. c. voltage signal deflection respective angles, with the manometric display mode of emulation mechanical type.
Preferably, also comprise:
Watchcase, is cylindrical hollow configuration, and tensimeter index dial and magneto-electric pointer gauge outfit are arranged in watchcase;
Table covers, overburden pressure table index dial;
Pipe adapter, one end connects watchcase, and the other end connects tested pipeline;
Two extension lines, connect magneto-electric pointer gauge outfit, respectively as input end and output terminal;
Range resistance, connects on the extension line as input end.
Preferably, tensimeter index dial and table are provided with a lining ring between covering.
Preferably, watchcase comprises a watchcase lid, is connected to watchcase outside.
Preferably, watchcase lid is the annulus with flanging.
Preferably, magneto-electric pointer gauge outfit comprises:
Moving-coil, comprises non magnetic frame and is wrapped in the coil on non magnetic frame, on non magnetic frame, be provided with rotating shaft, two extension lines are connected to the two ends of coil;
Two volute springs, the respectively two ends of connection rotating shaft;
Magnet, comprises the N utmost point and the S utmost point, and correspondence is arranged on the both sides of moving-coil respectively, with shaft parallel;
Pointer, one end connection rotating shaft, the other end, through hole, is exposed at outside tensimeter index dial.
Preferably, non magnetic frame is aluminium frame.
Preferably, the angle of the range of tensimeter index dial is 0 ~ 270 degree.
The mechanical indicating pointer structure that the present invention has adopted magneto-electric pointer gauge outfit to replace true pressure table to adopt, has removed from and has used true material, thereby effectively reduced instruction cost, and installation form, display format, contour structures are identical with true pressure table; Also have simultaneously maintaining simple, without the advantage of potential safety hazard.
Accompanying drawing explanation
Shown in Fig. 1 is front elevation of the present invention
Shown in Fig. 2 is inner structure schematic diagram of the present invention.
Embodiment
Below with reference to accompanying drawing of the present invention; technical scheme in the embodiment of the present invention is carried out to clear, complete description and discussion; obviously; as described herein is only a part of example of the present invention; it is not whole examples; embodiment based in the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to protection scope of the present invention.
For the ease of the understanding to the embodiment of the present invention, below in conjunction with accompanying drawing, take specific embodiment and be further explained as example, and each embodiment does not form the restriction to the embodiment of the present invention.
Please refer to Fig. 1 and Fig. 2, the emulation tensimeter of this embodiment, main composition comprises that watchcase 1, watchcase lid 2, tensimeter index dial 3, magneto-electric pointer gauge outfit 4, pointer 11, pipe adapter 5, pipe adapter nut 6, lining ring 9, glass table cover 10.
In order to realize real simulation effect, watchcase 1 directly adopts ordinarily manometer watchcase, and this watchcase is cylindrical, and hollow structure is with a watchcase lid.Table shell cover structure is the annulus with flanging.
Circular hole place below watchcase 1 is arranged on pipe adapter 5 on watchcase 1 with pipe adapter nut 6, by pipe adapter 5, just emulation tensimeter can be arranged on by the equipment of measuring pressure or pipeline.
On bottom magneto-electric pointer gauge outfit 4 being fixed in watchcase 1 with screw, nut.Pointer gauge outfit 4 is kits that comprise pointer 11, coil and two lead-out wires of coil tie points thereof.
With a thin wire as signal input line extension line (+), described thin wire one end is as signal input line extension line (+), the other one end of described wire is connected in series a range resistance 7, and the other one end of described range resistance 7 connects the extension line tie point of the described coil of described magneto-electric pointer gauge outfit 4.With an other thin wire, as signal input line extension line (-), described thin wire one end is as signal input line extension line (-), and the other one end of described wire connects the another one extension line tie point of the described coil of described magneto-electric pointer gauge outfit 4.
On tensimeter index dial 3, place lining ring 9;
On lining ring 9, placing glass table covers 10;
At the two ends of thin wire, add after 0-5V DC standard industry DC voltage, by range resistance 7, convert voltage signal to moving-coil 12 acceptable microampere orders (uA level) DC current signal in magneto-electric pointer gauge outfit 4, magneto-electric pointer gauge outfit 4 is assemblies, and main magnet 14, moving-coil 12, volute spring 15, pointer 11 form.Moving-coil 12 be one around the coil on aluminium frame, both sides are respectively the N utmost point and the S utmost points of magnet 14, and two volute springs 15 and a pointer 11 are housed in the rotating shaft 13 of aluminium frame.When electric current flows through described coil, described moving-coil 12 is subject to magnetic torque effect and deflects in the magnetic field of described magnet, and the pointer 11 being fixed on described moving-coil 12 produces deflection thereupon.The volute spring that is fixed on the upper and lower two ends of described coil produces torsional moment because described coil rotates, and this torsional moment direction and magnetic torque opposite direction stop coil to rotate.When magnetic torque equal and opposite in direction that volute spring torsional moment and coil are subject to, described coil just stops operating.Described coil drives pointer 11 to change corresponding deflection angle, and described pointer demonstrates the size of the force value of answering in contrast on tensimeter index dial 3.
Adopt aluminium frame to be because: 1, aluminium light (density is little), it is little that aluminium is made skeleton moment of inertia.2, framework, rises to support to coil and does, and makes whole moving-coil become a firmer integral body.If with iron or other magnetic metals, will cause disturbing the correctness of pointer.So must use nonmagnetic substance, aluminium is preferably to select, but the present invention does not limit.
0-5V voltage input signal Vi, after overrange resistance 7, converts the moving-coil that microampere order electric current I flows through magneto-electric pointer gauge outfit to.The moving-coil of current flowing I is subject to magnetic torque M1 effect and deflects in magnetic field, and the pointer being fixed on moving-coil produces deflection thereupon, and deflection angle is all θ.The volute spring that is fixed on the upper and lower two ends of moving-coil produces torsional moment M2 because moving-coil rotates, and the direction of this torsional moment M2 and the opposite direction of magnetic torque M1 stop moving-coil to rotate.
During the equal and opposite in direction of the magnetic torque M1 being subject to when volute spring torsional moment M2 and moving-coil, moving-coil just stops operating.Now, the deflection angle θ of moving-coil is exactly needle deflection angle θ.This deflection angle θ and the electric current I size relation in direct ratio that flows through moving-coil.
Suppose, the induction size in magnetic field is B, and moving-coil frame is long is L, wide for d, the number of turn are n, and when moving-coil current flowing I, the magnetic torque of generation is M1=F*d.
Because F=nBIL
So M1=nBILd
When coil turns over angle θ (needle deflection angle is also θ), volute spring produces and hinders the torsional moment M2=k θ (k is volute spring coefficient) that coil deflects
When pointer stops operating, M1 and M2 equal and opposite in direction, opposite direction.While being pointer stall, M1=M2.
nBILd=kθ
θ=nBILd/k=(nBLd/k)*I ...................(1)
Suppose that again voltage input signal size is for Vi, range resistance 7 is Rs, and moving-coil resistance is r, flows through the electric current I of moving-coil and the relational expression of Vi is
Vi=I*(Rs+r)
Arrange to such an extent that I=Vi/ (Rs+r) brings formula (1) into
θ=(nBLd/k)*I=(nBLd/k)*Vi/(Rs+r)
θ={(nBLd)/k(Rs+r)}*Vi ........................（2）
From above formula, needle deflection angle θ and voltage input signal Vi size relation in direct ratio.
Such as: 5V voltage input signal (Vi=5V), after overrange resistance 7, converts the moving-coil that microampere order electric current I flows through magneto-electric pointer gauge outfit to.The moving-coil of current flowing I is subject to magnetic torque M1 effect and drives pointer to produce deflection in magnetic field, and deflection angle is θ=270 degree.Volute spring produces torsional moment M2 and stops moving-coil to rotate because moving-coil rotates.When M2 and M1 equal and opposite in direction, moving-coil just stops operating.Now, needle deflection angle θ=270 degree.
The above; be only the present invention's embodiment preferably, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (8)
1. an emulation tensimeter, in order to analogue measurement internal pipe pressure, is characterized in that, comprising:
Tensimeter index dial, the center of described tensimeter index dial has a hole;
Magneto-electric pointer gauge outfit, a part for described magneto-electric pointer gauge outfit, through described hole, is exposed at outside described tensimeter index dial;
Wherein, described magneto-electric pointer gauge outfit receives d. c. voltage signal, and according to described d. c. voltage signal deflection respective angles, with the manometric display mode of emulation mechanical type.
2. emulation tensimeter according to claim 1, is characterized in that, also comprises:
Watchcase, is cylindrical hollow configuration, and described tensimeter index dial and described magneto-electric pointer gauge outfit are arranged in described watchcase;
Table covers, and covers described tensimeter index dial;
Pipe adapter, one end connects described watchcase, and the other end connects tested pipeline;
Two extension lines, connect described magneto-electric pointer gauge outfit, respectively as input end and output terminal;
Range resistance, connects the described extension line as input end.
3. emulation tensimeter according to claim 2, is characterized in that, described tensimeter index dial and described table are provided with a lining ring between covering.
4. emulation tensimeter according to claim 2, is characterized in that, described watchcase comprises a watchcase lid, is connected to described watchcase outside.
5. emulation tensimeter according to claim 4, is characterized in that, described watchcase lid is the annulus with flanging.
6. emulation tensimeter according to claim 1, is characterized in that, described magneto-electric pointer gauge outfit comprises:
Moving-coil, comprises non magnetic frame and is wrapped in the coil on described non magnetic frame, on described non magnetic frame, be provided with rotating shaft, described two extension lines are connected to the two ends of described coil;
Two volute springs, connect respectively the two ends of described rotating shaft;
Magnet, comprises the N utmost point and the S utmost point, and correspondence is arranged on the both sides of described moving-coil respectively, with described shaft parallel;
Pointer, one end connects described rotating shaft, and the other end, through described hole, is exposed at outside described tensimeter index dial.
7. emulation tensimeter according to claim 6, is characterized in that, described non magnetic frame is aluminium frame.
8. emulation tensimeter according to claim 1, is characterized in that, the angle of the range of described tensimeter index dial is 0 ~ 270 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310696301.8A CN103714728B (en) | 2013-12-18 | 2013-12-18 | Simulation pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310696301.8A CN103714728B (en) | 2013-12-18 | 2013-12-18 | Simulation pressure gauge |
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| Publication Number | Publication Date |
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| CN103714728A true CN103714728A (en) | 2014-04-09 |
| CN103714728B CN103714728B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310696301.8A Active CN103714728B (en) | 2013-12-18 | 2013-12-18 | Simulation pressure gauge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616003A (en) * | 2019-01-31 | 2019-04-12 | 浙江理工大学 | A kind of mechanical kinetic energy transmission teaching guidance model |
Citations (5)
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| CN201382148Y (en) * | 2009-04-09 | 2010-01-13 | 高强 | Non-medium semi-physical pressure vessel |
| CN201488856U (en) * | 2009-08-11 | 2010-05-26 | 陈吉江 | Simulated diaphragm watch |
| CN102013184A (en) * | 2010-12-13 | 2011-04-13 | 南京化工职业技术学院 | Simulation digital pressure gage |
| CN103165000A (en) * | 2011-12-19 | 2013-06-19 | 北京印刷学院 | Simulation watch and fault simulation analog system using simulation watch |
| CN203337186U (en) * | 2013-07-09 | 2013-12-11 | 郑州椿长仪器仪表有限公司 | Isolated-measurement thermobarometer |
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2013
- 2013-12-18 CN CN201310696301.8A patent/CN103714728B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201382148Y (en) * | 2009-04-09 | 2010-01-13 | 高强 | Non-medium semi-physical pressure vessel |
| CN201488856U (en) * | 2009-08-11 | 2010-05-26 | 陈吉江 | Simulated diaphragm watch |
| CN102013184A (en) * | 2010-12-13 | 2011-04-13 | 南京化工职业技术学院 | Simulation digital pressure gage |
| CN103165000A (en) * | 2011-12-19 | 2013-06-19 | 北京印刷学院 | Simulation watch and fault simulation analog system using simulation watch |
| CN203337186U (en) * | 2013-07-09 | 2013-12-11 | 郑州椿长仪器仪表有限公司 | Isolated-measurement thermobarometer |
Non-Patent Citations (2)
| Title |
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| 马舜: "《承压类仿真培训装置压力表电气化改装方案研究》", 《中国石油和化工标准与质量》 * |
| 马舜: "《承压类仿真培训装置压力表电气化改装方案研究》", 《中国石油和化工标准与质量》, no. 6, 31 March 2013 (2013-03-31), pages 231 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616003A (en) * | 2019-01-31 | 2019-04-12 | 浙江理工大学 | A kind of mechanical kinetic energy transmission teaching guidance model |
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| CN103714728B (en) | 2016-08-24 |
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